Malicious PDF — malware analysis report

Static analysis result for SHA-256 634231643fc6019b…

MALICIOUS

PDF

39.0 KB Authoring application: Karbon
MD5: 2eba2906c6505a526dccf088256cd47c SHA-1: 0e0d856f0510bd3928f08f108aa53b586678023b SHA-256: 634231643fc6019b1f773895fcb9f29af97e1ea9da5ce916ecab1d265c0cf2e1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. This suggests a phishing or redirection campaign designed to lead users to malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://mmafanvote.com/uploads/1/3/0/6/130621472/pozoxepokizumo.pdf
    • http://buyatpure.com/uploads/1/3/0/2/130289628/nixesan_zafalesifile.pdf
    • http://pusayorkunited.net/uploads/1/3/0/3/130313698/1142432.pdf
    • http://bennettcoffeeroastingcompany.com/uploads/1/3/0/2/130272973/ace67f8.pdf
    • http://artemisandheradoulas.com/uploads/1/3/0/6/130620353/kifabekugavegututib.pdf
    • http://ps110k.com/uploads/1/3/0/4/130490193/ee0819c6.pdf
    • http://stokesed508webpage.com/uploads/1/3/0/6/130639409/130639409.html#android+studio+root+directory

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000112f.bin
00aac05f271b753f1e1f405d1aff3962721524e8caf06bb8e1759ac6a927549b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112F 8736 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.